Skip to content

Testing the Efficacy in Adults With Cold of HEalsea Rescue*

Efficacy and Safety of Healsea® Hypertonic Nasal Spray 2.7% in the Treatment of Acute Infectious Rhinitis in Adults

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05819190
Acronym
TEACHER
Enrollment
200
Registered
2023-04-19
Start date
2022-12-14
Completion date
2023-01-31
Last updated
2024-10-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Common Cold

Keywords

Acute infectious rhinitis, Rhinosinusitis, Respiratory tract infection, Nasal irrigation

Brief summary

Healsea® Rescue\* is a CE-marked class I medical device. This is a saline-based nasal spray supplemented with a natural Symbiofilm™ extract (0.04%) isolated from the marine bacteria. Healsea® Rescue\* is indicated in adults for the treatment of symptoms of acute respiratory tract infections, rhinitis or rhinosinusitis, and for reduction of the swelling of the nasal mucosa. The goal of this clinical trial is to demonstrate that hypertonic saline solution and Symbiofilm™ act in a synergistic manner to alleviate symptoms of the acute rhinitis phase resulting in better efficacy than isotonic saline solution without Symbiofilm™ used as Placebo in adults with early symptoms of common cold / acute infectious rhinitis.

Detailed description

Upper respiratory tract infections (URTIs) and sino-nasal symptoms are very frequent, especially during the fall and the winter. The common cold is caused by a variety of viruses such as human rhinoviruses and influenza viruses. The incidence of acute rhinitis/rhinosinusitis is very high, estimated to occur from 2 to 5 times per year in the average adult. However, the natural course of acute rhinitis in adults is favorable since 75% of persons have a reduction or resolution of symptoms within 7 days. Only 0.5 to 2.0% of subjects develop secondary bacterial sinusitis requiring antibiotic prescription. Bacterial over infections and progression to a chronic state are favoured by the formation of biofilms, which facilitate bacterial growth and persistence as well as reducing antibiotic efficacy. The socioeconomic impact of acute rhinitis is well established: visits to GP, additional prescriptions and over prescription of antibiotics, workdays lost. Although clinical evidence from well-designed trials is scarce, European and American guidelines for acute rhinosinusitis recommend daily nasal saline irrigation for reduction of the severity of symptoms and for speeding recovery. The exact mechanisms by which nasal irrigation works are not known. However, most of the experts agree that it is primarily a mechanical intervention leading to direct cleansing of the nasal mucosa. Hypertonic saline solutions are generally considered as more effective than isotonic saline solutions in reducing nasal symptoms in the acute phase. Nevertheless, the efficacy of such solution remains moderate. Healsea® Rescue\* is a CE-marked class I medical device. This is a saline-based nasal spray supplemented with a natural Symbiofilm™ extract (0.04%) isolated from the marine bacteria Bacillus licheniformis T14. The nasal solution is hypertonic (NaCl 2.7%). Symbiofilm™ is an exopolysaccharide with emulsifying properties and in vitro antibiofilm activity and detachment properties against various bacterial pathogens. Symbiofilm™ also protects in vitro human nasal epithelial cells viability after Rhinovirus, Adenovirus, Coronavirus OC43 and Flu infection. The aim of this study is to demonstrate that hypertonic saline solution and Symbiofilm™ act in a synergistic manner to alleviate symptoms of the acute rhinitis phase resulting in better efficacy than isotonic saline solution without Symbiofilm™ used as Placebo. The study comprises two parts: \- Part 1 (Day1-Day 8): treatment of the acute phase • with Healsea® Rescue\*, 2 puffs in each nostril 2 times per day during 7 days (14 intakes of the investigational device). or • with isotonic nasal spray (Placebo), 2 puffs in each nostril 2 times per day during 7 days (14 intakes of the Placebo). \- Part 2 (Day 9-Day 13/15): follow-up phase. The study comprises two visits and one telephone call: * Visit 1 (V1) at Day 1 * Telephone call at Day 8 * End of study visit (Visit 2, V2) between Day 13 and Day 15.

Interventions

DEVICEHealsea Rescue*

Subjects will be administered with Healsea Rescue\* by spraying 2 puffs in each nostril 2 times per day during 7 days.

DEVICEPlacebo

Subjects will be administered with isotonic saline nasal spray indistinguishable from the Healsea Rescue\* by spraying 2 puffs in each nostril 2 times per day during 7 days.

Sponsors

Lallemand Pharma AG
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Male/Female subjects \>18 years 2. Acute infectious rhinitis/rhinosinusitis for ≤48h before trial entry 3. Symptoms of headache, muscle ache, chilliness, sore throat, blocked nose, runny nose, cough, sneezing with a score ≤9 (according to a self-rated symptom score; scale: 0 → 3 \[0: no symptom to 3: severe intensity\]) 4. At least one of these symptoms: sore throat, runny nose or blocked nose (i.e., with a score ≥1) 5. Willingness to participate as evidenced by voluntary written informed consent and has received a signed and dated copy of the information consent form 6. Patient with a smartphone and an internet connection.

Exclusion criteria

1. Known hypersensitivity/allergy to any component of the test device 2. Medical history or any current disease that is considered by the investigator as a reason for non-inclusion 3. Severe nasal septum deviation or other condition that could cause nasal obstruction such as the presence of nasal polyps 4. History of nasal or sinus surgery that in the opinion of the investigator may influence symptom scores 5. Antibiotic intake within 2 weeks before screening 6. Systemic or local corticosteroids (nasal route or inhalation) within 4 weeks before screening 7. Antihistamines intake for allergy when treatment was started from less than 4 weeks 8. Chronic decongestant use 9. Recent (within the previous 2 days) intake of a common cold medicine that in the opinion of the investigator may influence symptom score at screening (NSAID, nasal decongestants, cough medicines) 10. Pregnant/Lactating female or absence of efficient contraception

Design outcomes

Primary

MeasureTime frameDescription
AUC (Area Under Curve) of Wisconsin Upper Respiratory Symptom Survey (WURSS-21) During First 8 Days of Symptoms as Compared Between Both Groups - Full Analysis Set (FAS)Treatment period, from Day 1 to Day 8The WURSS-21 questionnaire scores the severity and functional impact of a cold (items 2 to 11 and 12 to 20 respectively) plus 2 items for global severity and global change (items 1 and 21 respectively). Each item is scored from 0 (not sick / Do not have this symptom / Not at all / Very much better) to 7 (severely, severe, severely, very much worse) for global assessment, symptoms, functional impairment and global change respectively. The question 21 is not included in the calculation of the total score of the WURSS-21. The minimum WURSS-21 score is zero (0) and the maximum WURSS-21 score is one hundred forty (140). The questionnaire was completed in a diary once daily in the evening, taking into account the symptoms from the morning to the evening, during Day 2-Day 8 (day of the end of treatment). At Day 1, the WURSS-21 was completed during the visit. After Day 8, it was assessed once daily until the subject feels not sick for two consecutive days.
AUC (Area Under Curve) of Wisconsin Upper Respiratory Symptom Survey (WURSS-21) During First 8 Days of Symptoms as Compared Between Both Groups - Per Protocol Set (PP)Treatment period, from Day 1 to Day 8The WURSS-21 questionnaire scores the severity and functional impact of a cold (items 2 to 11 and 12 to 20 respectively) plus 2 items for global severity and global change (items 1 and 21 respectively). Each item is scored from 0 (not sick / Do not have this symptom / Not at all / Very much better) to 7 (severely, severe, severely, very much worse) for global assessment, symptoms, functional impairment and global change respectively. The question 21 is not included in the calulation of the total score of the WURSS-21. The minimum WURSS-21 score is zero (0) and the maximum WURSS-21 score is one hundred forty (140). The questionnaire was completed in a diary once daily in the evening, taking into account the symptoms from the morning to the evening, during Day 2-Day 8 (day of the end of treatment). At Day 1, the WURSS-21 was completed during the visit. After Day 8, it was assessed once daily until the subject feels not sick for two consecutive days.

Secondary

MeasureTime frameDescription
Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Runny NoseThrough study completion, up to Day 15For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.
Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Plugged NoseThrough study completion, up to Day 15For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.
Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of SneezingThrough study completion, up to Day 15For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.
Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Sore ThroatThrough study completion, up to Day 15For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.
Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of CoughThrough study completion, up to Day 15For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.
Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Scratchy ThroatThrough study completion, up to Day 15For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.
Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of HoarsenessThrough study completion, up to Day 15For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.
AUC of the Symptoms Sub-score (Items 2-11) of the WURSS-21 During First 8 DaysTreatment period, from Day 1 to Day 8The Symptoms' WURSS-21 questionnaire scores the severity of the cold (items 2 to 11). Each item is scored from 0 (Do not have this symptom) to 7 (Severe). The minimum Symptoms' WURSS-21 score is zero (0) and the maximum is seventy (70). The questionnaire was completed in a diary once daily in the evening, taking into account the symptoms from the morning to the evening, during Day 2-Day 8 (day of the end of treatment). At Day 1, the Symptoms' WURSS-21 was completed during the visit. After Day 8, it was assessed once daily until the subject feels not sick for two consecutive days.
Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Chest CongestionThrough study completion, up to Day 15For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.
Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Feeling TiredThrough study completion, up to Day 15For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.
Cumulative Number of Days of Usual Medication for Common Cold UseThrough study completion, up to Day 15Concomitant treatments (antipyretics, systemic or local mucolytics, decongestants, antitussives, antibiotics) use will be reported in the e-diary by the patient throughout the study, validated by the investigator at the end of study visit before being reported in the e-CRF.
Subject Satisfaction Regarding Ease of Use of the Nasal SprayBetween Day 13 and Day 15At end of study visit (V2) subject satisfaction regarding ease of use will be recorded using a 4-points categorical scale (How would you characterize the use of Healsea® Rescue\* nasal spray? 0: not easy ; 1: pretty easy ; 2: easy ; 3: very easy).
Characterization of Residual Taste by the SubjectBetween Day 13 and Day 15At end of study visit (V2) the residual taste after using the spray will be assessed by the subject using a 4-points categorical scale (How would you characterize the residual taste after spraying Healsea® Rescue\*?0: not pleasant ; 1: neutral ; 2: pleasant ; 3: very pleasant).
Characterization of Cleansing and Moistening of Nasal Mucosa With the Prescribed Treatment by the SubjectBetween Day 13 and Day 15At end of study visit (V2) cleansing and moistening of nasal mucosa will be assessed by the subject using a 4-points categorical scale (How would you characterize the cleansing and moistening of nasal mucosa with Healsea® Rescue\*?0: no improvement ; 1: slight improvement ; 2: moderate improvement; 3: very clear improvement).
Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Head CongestionThrough study completion, up to Day 15For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.
AUC of the Quality of Life Sub-score (Items 12-20) of the WURSS-21 During First 8 DaysTreatment period, from Day 1 to Day 8The Quality-of-Life' WURSS-21 questionnaire scores the impact of the cold on quality of life (items 12 to 20). Each item is scored from 0 (Not at all) to 7 (Severely). The minimum Quality-of-Life' WURSS-21 score is zero (0) and the maximum is sixty three (63). The questionnaire was completed in a diary once daily in the evening, taking into account the symptoms from the morning to the evening, during Day 2-Day 8 (day of the end of treatment). At Day 1, the Symptoms' WURSS-21 was completed during the visit. After Day 8, it was assessed once daily until the subject feels not sick for two consecutive days

Countries

Bulgaria

Participant flow

Recruitment details

First patient first visit: 14th December 2022 Last patient last visit: 31 th January 2023 Location: Bulgaria, 1 site

Participants by arm

ArmCount
Healsea Rescue* Group
Subjects will receive Healsea Rescue\* according to its intended use. Healsea Rescue\*: Subjects will be administered with Healsea Rescue\* by spraying 2 puffs in each nostril 2 times per day during 7 days.
100
Placebo Group
Subjects will receive Placebo according to identical posology, instructions for use, contraindication, precaution of use and labelling to those of Healsea Rescue. Placebo: Subjects will be administered with isotonic saline nasal spray indistinguishable from the Healsea Rescue\* by spraying 2 puffs in each nostril 2 times per day during 7 days.
100
Total200

Baseline characteristics

CharacteristicHealsea Rescue* GroupTotalPlacebo Group
Age, Continuous36.1 Years
STANDARD_DEVIATION 14
35.3 Years
STANDARD_DEVIATION 13.7
34.4 Years
STANDARD_DEVIATION 13.4
Race and Ethnicity Not Collected0 Participants
Region of Enrollment
Bulgaria
100 participants200 participants100 participants
Sex: Female, Male
Female
57 Participants111 Participants54 Participants
Sex: Female, Male
Male
43 Participants89 Participants46 Participants
Total WURSS-21 score at baseline37.7 units on a scale
STANDARD_DEVIATION 20.1
37.4 units on a scale
STANDARD_DEVIATION 19.1
37.0 units on a scale
STANDARD_DEVIATION 18.2

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 1000 / 100
other
Total, other adverse events
10 / 1009 / 100
serious
Total, serious adverse events
0 / 1000 / 100

Outcome results

Primary

AUC (Area Under Curve) of Wisconsin Upper Respiratory Symptom Survey (WURSS-21) During First 8 Days of Symptoms as Compared Between Both Groups - Full Analysis Set (FAS)

The WURSS-21 questionnaire scores the severity and functional impact of a cold (items 2 to 11 and 12 to 20 respectively) plus 2 items for global severity and global change (items 1 and 21 respectively). Each item is scored from 0 (not sick / Do not have this symptom / Not at all / Very much better) to 7 (severely, severe, severely, very much worse) for global assessment, symptoms, functional impairment and global change respectively. The question 21 is not included in the calculation of the total score of the WURSS-21. The minimum WURSS-21 score is zero (0) and the maximum WURSS-21 score is one hundred forty (140). The questionnaire was completed in a diary once daily in the evening, taking into account the symptoms from the morning to the evening, during Day 2-Day 8 (day of the end of treatment). At Day 1, the WURSS-21 was completed during the visit. After Day 8, it was assessed once daily until the subject feels not sick for two consecutive days.

Time frame: Treatment period, from Day 1 to Day 8

Population: Full Analysis Set (FAS)

ArmMeasureValue (MEAN)Dispersion
Healsea Rescue* GroupAUC (Area Under Curve) of Wisconsin Upper Respiratory Symptom Survey (WURSS-21) During First 8 Days of Symptoms as Compared Between Both Groups - Full Analysis Set (FAS)135.60 Score on a scale*dayStandard Deviation 89.88
Placebo GroupAUC (Area Under Curve) of Wisconsin Upper Respiratory Symptom Survey (WURSS-21) During First 8 Days of Symptoms as Compared Between Both Groups - Full Analysis Set (FAS)177.77 Score on a scale*dayStandard Deviation 125.4
Comparison: Comparison of the mean AUC of WURSS-21 scores assessed during the first 8 days of the study between both groups - FAS setp-value: 0.0192Wilcoxon (Mann-Whitney)
Primary

AUC (Area Under Curve) of Wisconsin Upper Respiratory Symptom Survey (WURSS-21) During First 8 Days of Symptoms as Compared Between Both Groups - Per Protocol Set (PP)

The WURSS-21 questionnaire scores the severity and functional impact of a cold (items 2 to 11 and 12 to 20 respectively) plus 2 items for global severity and global change (items 1 and 21 respectively). Each item is scored from 0 (not sick / Do not have this symptom / Not at all / Very much better) to 7 (severely, severe, severely, very much worse) for global assessment, symptoms, functional impairment and global change respectively. The question 21 is not included in the calulation of the total score of the WURSS-21. The minimum WURSS-21 score is zero (0) and the maximum WURSS-21 score is one hundred forty (140). The questionnaire was completed in a diary once daily in the evening, taking into account the symptoms from the morning to the evening, during Day 2-Day 8 (day of the end of treatment). At Day 1, the WURSS-21 was completed during the visit. After Day 8, it was assessed once daily until the subject feels not sick for two consecutive days.

Time frame: Treatment period, from Day 1 to Day 8

Population: Per Protocol Set (PP)

ArmMeasureValue (MEAN)Dispersion
Healsea Rescue* GroupAUC (Area Under Curve) of Wisconsin Upper Respiratory Symptom Survey (WURSS-21) During First 8 Days of Symptoms as Compared Between Both Groups - Per Protocol Set (PP)122.50 score on a scale*dayStandard Deviation 83.42
Placebo GroupAUC (Area Under Curve) of Wisconsin Upper Respiratory Symptom Survey (WURSS-21) During First 8 Days of Symptoms as Compared Between Both Groups - Per Protocol Set (PP)163.21 score on a scale*dayStandard Deviation 114
Comparison: Comparison of the mean AUC of WURSS-21 scores assessed during the first 8 days of the study between both groups - PP setp-value: 0.0296Wilcoxon (Mann-Whitney)
Secondary

AUC of the Quality of Life Sub-score (Items 12-20) of the WURSS-21 During First 8 Days

The Quality-of-Life' WURSS-21 questionnaire scores the impact of the cold on quality of life (items 12 to 20). Each item is scored from 0 (Not at all) to 7 (Severely). The minimum Quality-of-Life' WURSS-21 score is zero (0) and the maximum is sixty three (63). The questionnaire was completed in a diary once daily in the evening, taking into account the symptoms from the morning to the evening, during Day 2-Day 8 (day of the end of treatment). At Day 1, the Symptoms' WURSS-21 was completed during the visit. After Day 8, it was assessed once daily until the subject feels not sick for two consecutive days

Time frame: Treatment period, from Day 1 to Day 8

Population: Full Analysis Set (FAS)

ArmMeasureValue (MEAN)Dispersion
Healsea Rescue* GroupAUC of the Quality of Life Sub-score (Items 12-20) of the WURSS-21 During First 8 Days54.36 score on a sub-scale*dayStandard Deviation 59.49
Placebo GroupAUC of the Quality of Life Sub-score (Items 12-20) of the WURSS-21 During First 8 Days74.50 score on a sub-scale*dayStandard Deviation 79.15
p-value: 0.0081Wilcoxon (Mann-Whitney)
Secondary

AUC of the Symptoms Sub-score (Items 2-11) of the WURSS-21 During First 8 Days

The Symptoms' WURSS-21 questionnaire scores the severity of the cold (items 2 to 11). Each item is scored from 0 (Do not have this symptom) to 7 (Severe). The minimum Symptoms' WURSS-21 score is zero (0) and the maximum is seventy (70). The questionnaire was completed in a diary once daily in the evening, taking into account the symptoms from the morning to the evening, during Day 2-Day 8 (day of the end of treatment). At Day 1, the Symptoms' WURSS-21 was completed during the visit. After Day 8, it was assessed once daily until the subject feels not sick for two consecutive days.

Time frame: Treatment period, from Day 1 to Day 8

Population: Full Analysis Set (FAS)

ArmMeasureValue (MEAN)Dispersion
Healsea Rescue* GroupAUC of the Symptoms Sub-score (Items 2-11) of the WURSS-21 During First 8 Days67.11 score on a sub-scale*dayStandard Deviation 43.09
Placebo GroupAUC of the Symptoms Sub-score (Items 2-11) of the WURSS-21 During First 8 Days87.57 score on a sub-scale*dayStandard Deviation 53.15
p-value: 0.0085Wilcoxon (Mann-Whitney)
Secondary

Characterization of Cleansing and Moistening of Nasal Mucosa With the Prescribed Treatment by the Subject

At end of study visit (V2) cleansing and moistening of nasal mucosa will be assessed by the subject using a 4-points categorical scale (How would you characterize the cleansing and moistening of nasal mucosa with Healsea® Rescue\*?0: no improvement ; 1: slight improvement ; 2: moderate improvement; 3: very clear improvement).

Time frame: Between Day 13 and Day 15

Population: Full Analysis Set

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Healsea Rescue* GroupCharacterization of Cleansing and Moistening of Nasal Mucosa With the Prescribed Treatment by the Subjectno improvement3 Participants
Healsea Rescue* GroupCharacterization of Cleansing and Moistening of Nasal Mucosa With the Prescribed Treatment by the Subjectslight improvement11 Participants
Healsea Rescue* GroupCharacterization of Cleansing and Moistening of Nasal Mucosa With the Prescribed Treatment by the Subjectmoderate improvement47 Participants
Healsea Rescue* GroupCharacterization of Cleansing and Moistening of Nasal Mucosa With the Prescribed Treatment by the Subjectvery clear improvement39 Participants
Placebo GroupCharacterization of Cleansing and Moistening of Nasal Mucosa With the Prescribed Treatment by the Subjectvery clear improvement47 Participants
Placebo GroupCharacterization of Cleansing and Moistening of Nasal Mucosa With the Prescribed Treatment by the Subjectno improvement5 Participants
Placebo GroupCharacterization of Cleansing and Moistening of Nasal Mucosa With the Prescribed Treatment by the Subjectmoderate improvement37 Participants
Placebo GroupCharacterization of Cleansing and Moistening of Nasal Mucosa With the Prescribed Treatment by the Subjectslight improvement11 Participants
Comparison: 0.05 global significance level (type I error rate)p-value: 0.483Fisher Exact
Secondary

Characterization of Residual Taste by the Subject

At end of study visit (V2) the residual taste after using the spray will be assessed by the subject using a 4-points categorical scale (How would you characterize the residual taste after spraying Healsea® Rescue\*?0: not pleasant ; 1: neutral ; 2: pleasant ; 3: very pleasant).

Time frame: Between Day 13 and Day 15

Population: Full Analysis Set

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Healsea Rescue* GroupCharacterization of Residual Taste by the Subjectresidual taste not pleasant4 Participants
Healsea Rescue* GroupCharacterization of Residual Taste by the Subjectresidual taste neutral59 Participants
Healsea Rescue* GroupCharacterization of Residual Taste by the Subjectresidual taste pleasant21 Participants
Healsea Rescue* GroupCharacterization of Residual Taste by the Subjectresidual taste very pleasant16 Participants
Placebo GroupCharacterization of Residual Taste by the Subjectresidual taste very pleasant15 Participants
Placebo GroupCharacterization of Residual Taste by the Subjectresidual taste not pleasant3 Participants
Placebo GroupCharacterization of Residual Taste by the Subjectresidual taste pleasant21 Participants
Placebo GroupCharacterization of Residual Taste by the Subjectresidual taste neutral61 Participants
Comparison: 0.05 global significance level (type I error rate)p-value: 0.988Fisher Exact
Secondary

Cumulative Number of Days of Usual Medication for Common Cold Use

Concomitant treatments (antipyretics, systemic or local mucolytics, decongestants, antitussives, antibiotics) use will be reported in the e-diary by the patient throughout the study, validated by the investigator at the end of study visit before being reported in the e-CRF.

Time frame: Through study completion, up to Day 15

Population: Full Analysis set

ArmMeasureValue (NUMBER)
Healsea Rescue* GroupCumulative Number of Days of Usual Medication for Common Cold Use7 days
Placebo GroupCumulative Number of Days of Usual Medication for Common Cold Use15 days
Comparison: 0.05 global significance level (type I error rate)p-value: 0.605Fisher Exact
Secondary

Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Chest Congestion

For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.

Time frame: Through study completion, up to Day 15

Population: Full Analysis Set

ArmMeasureValue (MEAN)Dispersion
Healsea Rescue* GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Chest Congestion3.1 daysStandard Deviation 3.8
Placebo GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Chest Congestion3.2 daysStandard Deviation 4
Comparison: 0.05 global significance level (type I error rate)p-value: 0.582Wilcoxon (Mann-Whitney)
Secondary

Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Cough

For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.

Time frame: Through study completion, up to Day 15

Population: Full Analysis Set

ArmMeasureValue (MEAN)Dispersion
Healsea Rescue* GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Cough4.2 daysStandard Deviation 4.3
Placebo GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Cough4.3 daysStandard Deviation 3.9
Comparison: 0.05 global significance level (type I error rate)p-value: 0.339Wilcoxon (Mann-Whitney)
Secondary

Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Feeling Tired

For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.

Time frame: Through study completion, up to Day 15

Population: Full Analysis Set

ArmMeasureValue (MEAN)Dispersion
Healsea Rescue* GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Feeling Tired4.7 daysStandard Deviation 3.9
Placebo GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Feeling Tired4.4 daysStandard Deviation 3.8
Comparison: 0.05 global significance level (type I error rate)p-value: 0.743Wilcoxon (Mann-Whitney)
Secondary

Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Head Congestion

For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.

Time frame: Through study completion, up to Day 15

Population: Full Analysis Set

ArmMeasureValue (MEAN)Dispersion
Healsea Rescue* GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Head Congestion4.7 daysStandard Deviation 4.2
Placebo GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Head Congestion3.9 daysStandard Deviation 3.8
Comparison: 0.05 global significance level (type I error rate)p-value: 0.906Wilcoxon (Mann-Whitney)
Secondary

Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Hoarseness

For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.

Time frame: Through study completion, up to Day 15

Population: Full Analysis Set

ArmMeasureValue (MEAN)Dispersion
Healsea Rescue* GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Hoarseness3.7 daysStandard Deviation 3.9
Placebo GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Hoarseness3.9 daysStandard Deviation 3.9
Comparison: 0.05 global significance level (type I error rate)p-value: 0.298Wilcoxon (Mann-Whitney)
Secondary

Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Plugged Nose

For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.

Time frame: Through study completion, up to Day 15

Population: Full Analysis Set

ArmMeasureValue (MEAN)Dispersion
Healsea Rescue* GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Plugged Nose5.9 daysStandard Deviation 3.1
Placebo GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Plugged Nose6.9 daysStandard Deviation 3.2
p-value: 0.0107Wilcoxon (Mann-Whitney)
Secondary

Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Runny Nose

For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.

Time frame: Through study completion, up to Day 15

Population: Full Analysis Set

ArmMeasureValue (MEAN)Dispersion
Healsea Rescue* GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Runny Nose6.1 daysStandard Deviation 3.1
Placebo GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Runny Nose7.2 daysStandard Deviation 3.1
p-value: 0.005Wilcoxon (Mann-Whitney)
Secondary

Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Scratchy Throat

For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.

Time frame: Through study completion, up to Day 15

Population: Full Analysis Set

ArmMeasureValue (MEAN)Dispersion
Healsea Rescue* GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Scratchy Throat4.5 daysStandard Deviation 3.9
Placebo GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Scratchy Throat4.3 daysStandard Deviation 3.8
Comparison: 0.05 global significance level (type I error rate)p-value: 0.704Wilcoxon (Mann-Whitney)
Secondary

Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Sneezing

For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.

Time frame: Through study completion, up to Day 15

Population: Full Analysis Set

ArmMeasureValue (MEAN)Dispersion
Healsea Rescue* GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Sneezing3.3 daysStandard Deviation 3.4
Placebo GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Sneezing4.3 daysStandard Deviation 3.6
p-value: 0.0424Wilcoxon (Mann-Whitney)
Secondary

Duration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Sore Throat

For each item, the duration is defined as the number of symptomatic days between Visit 1 and the first day the subject reports not to have this symptom for two consecutive days.

Time frame: Through study completion, up to Day 15

Population: Full Analysis Set

ArmMeasureValue (MEAN)Dispersion
Healsea Rescue* GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Sore Throat3.9 daysStandard Deviation 3.7
Placebo GroupDuration of Cold Symptoms Assessed by Means of the WURSS-21: Duration of Sore Throat3.9 daysStandard Deviation 3.7
Comparison: 0.05 global significance level (type I error rate)p-value: 0.43Wilcoxon (Mann-Whitney)
Secondary

Subject Satisfaction Regarding Ease of Use of the Nasal Spray

At end of study visit (V2) subject satisfaction regarding ease of use will be recorded using a 4-points categorical scale (How would you characterize the use of Healsea® Rescue\* nasal spray? 0: not easy ; 1: pretty easy ; 2: easy ; 3: very easy).

Time frame: Between Day 13 and Day 15

Population: Full Analysis Set

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Healsea Rescue* GroupSubject Satisfaction Regarding Ease of Use of the Nasal Sprayuse not easy0 Participants
Healsea Rescue* GroupSubject Satisfaction Regarding Ease of Use of the Nasal Sprayuse pretty easy4 Participants
Healsea Rescue* GroupSubject Satisfaction Regarding Ease of Use of the Nasal Sprayuse easy8 Participants
Healsea Rescue* GroupSubject Satisfaction Regarding Ease of Use of the Nasal Sprayuse very easy88 Participants
Placebo GroupSubject Satisfaction Regarding Ease of Use of the Nasal Sprayuse very easy87 Participants
Placebo GroupSubject Satisfaction Regarding Ease of Use of the Nasal Sprayuse not easy1 Participants
Placebo GroupSubject Satisfaction Regarding Ease of Use of the Nasal Sprayuse easy9 Participants
Placebo GroupSubject Satisfaction Regarding Ease of Use of the Nasal Sprayuse pretty easy3 Participants
Comparison: 0.05 global significance level (type I error rate)p-value: 1Fisher Exact

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026